Apparatus for sampling ores



(No Model.)

O. E. PALMER.

APPARATUS FOR SAMPLING ORESi I No. 398,275. Patented Peb. 19; 1889.

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UniTnn STATES PATENT FFlCli.

CORTLANDT I PALMER, OF RICO, COLORADO.

APPARATUS FOR SAMPLING ORES.

SPECIFICATION forming part of Letters Patent No. 398,275, dated February 19, 1889.

Application filed $epte1nber 18, 1888. fierial No. 285,708. (No model.)

To (LZZ whom it may concern:

Be it known that I, CORTLANDT E. PALMER,

a citizen of the United States, and a resident of Rice, in the county of Dolores and State of Colorado, have invented certain new and useful Improvements in Apparatus for Sampling Ores, of which the following is a specification.

My invention relates to an improvement in apparatus for sampling all kinds of ores, but

more particularly to those classes of sampling apparatus which are automatic in their action, and which, by reason of the fact that they divide up a stream of crushed ore in any given proportions, are technically called splitters.

The object of the invention is to produce a more efficient and simple splitter than has heretofore been possible, and one which re duees the amount of hand-labor necessary in sampling to a minimum, that is more easily and cheaply constructed, and at the same time will be of such construction that ore on passing through it will not clog or impede its operation.

The invention will be best understood by reference to the accompanying drawings, in which- Figure 1 is a plan view of the apparatus, and Fig. 2 a sectional elevation on the line a: 00 of Fig. 1.

Similarletters refer to similar parts throughout both views.

In the views, F and F are two pipes of different diameter and of different height. The smaller and shorter, F, is placed within the larger and longer, F, and supported therein in any convenient manner in the relative position shown in Fig. 2, so that the smaller shall be concentric with the larger. The annular space between the two pipes is divided by radial vertical partitions b b 1) into eight or more symmetrical spaces, B B B B D D D D, the relative dimensions of which will vary according to the proportion of the ore desired for sample. The pipe F is covered on top by a cone, A, the sides of which slope at an angle of forty-five degrees to the perpendicular. The ore to be sampled is delivered as it comes from the large rolls on the apex of the cone A by means of a smaller vertical pipe, E, which is concentric with the apex of the cone A, and which terminates at its bottom in an imaginary horizontal plane passing through the apex of the cone A. The diame" ter of this pipe is made as small as is con-- with inclined bottoms Z) l) b b, so as to form open pockets, and an opening, 0, as shown in 2, is provided in the side walls of the pipe F in each pocket topermit of the material separated being discharged from the pockets. These openings are the full width and height of the pockets, as shown in Fig. 2.

Beneath the pipe F is placed an inclined dischzirge-pipe, II, which conveys the material caught by the four pockets B B B B to any desired point at a lower level, but in practice directly to a secondary set of crushing-rolls. The alternate spaces D D D D, formed between the partitions b b, are open at the bottom, as shown in Fig. 2, so that the material can fall through them, as shown by the arrows in Fig. 2, and be discharged directly into a bin or car by means of a suitable chute, if necessary.

The apparatus may be made out of any desired material and of any convenient size, and its various parts may be put together as may be found convenient. In practice it will be found most convenient to construct it out of light or heavy galvanized sheet or Russia iron, according to the service required, and to solder or rivet the various parts together.

The method of operation of the apparatus is as follows: The ore discharged by the small supply-pipe E slides down the inclined surface of the cone .A in a sheet evenly distributed around the circumference, and on arriving at the lower periphery a certain proportion-say about one-thirdof the mass is caught in the pockets B, and is conveyed by the sloping bottoms of the same to the interior of the smaller pipe, F, and thence by the discharge pipe H directly to the small rolls or to any other desired place at a lower level. That portion of the ore which falls into the four pockets D is carried by the chutes directly 2 seems into a car or storage-bin or other receptacle at a lower level. By placing a series of such splitters one below the other the sample may be reduced to any proportion desired before the final manipulation by hand, the discarded proportion from each splitter being delivered automatically to the chute leading to the car, storage-bin, &c. Thus, for example, the sample cut out from a lot of oresay one-tenth is fed into the crusher, and thence drops into the large rolls. From these it passes into a bucket-elevator, and is delivered in a quite fine state to the first splitter, the large pipe of which is, say, twenty inches in diameter and the small pipe twelve inches. This splitter delivers about one-third of the sample to a secondary set of rolls and two-thirds to a chute leading to a car. The one-third of the sample, after passing the small rolls, is delivered to a second splitter with large pipe eleven inches and small pipe seven inches in diameter, which allows one-third to pass to the sampling-floor below and two-thirds to the same chute, as referred to above. Thus, for example, if a lot of ore containing twentyfive tons is taken, the amount of ore to be han-. dled by shovel in sampling amounts, therefore, to twenty-five tons l, or .278 tons, or five hundred and fifty-siX pounds,

hand-labor required to a minimum, and very greatly diminishing the time necessary for doing the work.

I claim as my invent.ion

In a sampling apparatus, the combination, substantially as hereinbefore described, of an exterior cylinder open at the bottom, forming the outer walls of the sampler, an interior cylinder placed within the outer cylinder and con-centric therewith, a cone surmounting' said inner cylinder of equal diameter therewith, a supply-pipe for delivering ore on the apex of the cone, a series of inclined pockets of suitable size formed in the space between the two cylinders and opening into the interior of the inner cylinder, and a dischargepipe forcarrying off the material discharged by the pockets.

Signed at Rico, in the county of Dolores and State of Colorado, this 10th day of August, A. D. 1888.

CORTLANDT E. PALMER.

\Vitnesses:

LEON EGGERS, W. W. PARSHALL. 

